I have a custom app that was compiled with scala 2.10.3 which I believe is what the latest spark-ec2 script installs. However running it on the master yields this cryptic error which according to the web implies incompatible jar versions.
Exception in thread "main" java.lang.NoClassDefFoundError: scala/Function1 at Demo(Demo.scala) Caused by: java.lang.ClassNotFoundException: scala.Function1 at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) How can I tell from my list of jars which are the culprits (can I see what version of scala they were compiled with). This seems to be an issue that was around the 2.8.x timelines for scala so not sure why I am getting this for 2.10.3. Please help!
